A trader at JP Morgan, who worked for the so-called London Whale, Bruno Iksil, and who has come under scrutiny as US authorities probe the multi-billion dollar trading loss incurred by the bank’s chief investment office, has left the bank.

Reuters reported in early September that Julien Grout, who joined JP Morgan in 2009 and reported to Iksil, the former credit trader at the centre of the trading scandal, had started attracting the scrutiny of US authorities investigating the trading loss http://reut.rs/ObxYyE.

While the fall-out from Whalegate had already led to the departure in July last year of Iksil and two other traders in the chief investment office, Achilles Macris and Javier Martin-Artajo, Reuters reported that Grout still worked for the bank, citing a JP Morgan spokeswoman.

However, Grout is understood to have subsequently left the bank, with Financial Services Authority records showing his registration at JP Morgan became inactive on December 20 last year.

The Wall Street Journal reported in July that Iksil, Macris and Martin-Artajo, who all worked for the chief investment office in London, had left the bank having already been stripped of their trading duties after the bank learned of the losses and began an investigation.

Their departures followed the retirement in May of Ina Drew, who had been in charge of the bank’s chief investment office unit.